<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>
    <script>
        function add(a, b, c) {
            return a + b + c
        }


        const curry = (fn) => {
            return function curried(...args1) {
                if (args1.length >= fn.length) {
                    return fn.call(null, ...args1)
                } else {
                    return function (...args2) {
                        return curried.apply(null, [...args1, ...args2])
                        // return curried.apply(this, args1.concat(args2))
                    }
                }
            }
        }

        let addCurry = curry(add)

        const res2 = addCurry(1)(2)(3)(4)

        console.log(res2);
    </script>
</body>

</html>